Lovely kids mini trolley backpack 1. 600D polyester 2. Cute style for little girls 3. ... optionsScreen printing (often to use on bags made by polyester, nylon, cotton, PU leather),High frequency emboss ... (often to use on bags made by polyester, nylon, cotton, Spun fabric). sublimation heat transfer(for ... polyester fabric only, such as 190T, 210T, 600D, ...